import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
            Scanner scanner = new Scanner(System.in);
            int a = scanner.nextInt();
            int b = scanner.nextInt();
            a = a + b;
            b = a - b;
            a = a - b;
            System.out.println(a + " " + b);
    }

}
